<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>9.14CSS复习</title>
	<style>
		ul>li:first-child{
                color:red;   
		}
		ul>li:last-child{
			color:blue;
		}
	</style>
</head>
<body>
	 <ul>
	 	<li>123456</li>
	 	<li>123456</li>
	 	<li>123456</li>
     </ul>
</body>
</html>